ARCTIC OCEAN – U.S. Coast Guard Petty Officer 3rd Class Shannon Eubanks (left) instructs Petty Officer 2nd Class Ed Traver (right) on ice rescue techniques Wednesday, Oct. 3, 2018, about 715 miles north of Barrow, Alaska, in the Arctic. Ice training is required to qualify as a member of the ship's ice rescue team, which protects crew members and scientists conducting work in the Arctic. The Healy is underway in the Arctic with about 100 crew members and 30 scientists to deploy sensors and semi-autonomous submarines to study stratified ocean dynamics and how environmental factors affect the water below the ice surface for the Office of Naval Research. The Healy, which is homeported in Seattle, is one of two ice breakers in U.S. service and is the only military ship dedicated to conducting research in the Arctic. (NyxoLyno Cangemi/U.S. Coast Guard)